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Carlsson, H.-E.; Lyberg, K.; Royo, F.; Hau, J. |
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Title |
Quantification of stress sensitive markers in single fecal samples do not accurately predict excretion of these in the pig |
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Year |
2007 |
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Research in Veterinary Science |
Abbreviated Journal |
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82 |
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3 |
Pages |
423-428 |
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Keywords |
Cortisol; Immunoglobulin A; Stress; Pigs; Feces; Animal welfare |
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Abstract |
All feces produced during 24 h were collected from five pigs and cortisol and immunoreactive cortisol metabolites (CICM), and IgA were quantified. Within pigs, the concentrations of CICM and IgA varied extensively between random samples obtained from a single fecal dropping, and deviated in most cases significantly from the true concentration measured in total fecal output (CV 6.7–130%). The CICM and IgA contents varied considerably (CV 8.1–114%) within and between individual fecal droppings from the same pig compared to the total fecal excretion. In conclusion, single random samples could not be used to reliably quantify the total fecal concentration or excretion of CICM or IgA in pigs. Analyses of all feces collected during shorter periods than 24 h did not provide an accurate estimate of the daily excretion of CICM. Thus, the concentration of stress sensitive molecules in random single fecal samples as an indicator of animal welfare should be interpreted with prudence. |
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0034-5288 |
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Equine Behaviour @ team @ |
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5853 |
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Eriksson, E.; Royo, F.; Lyberg, K.; Carlsson, H.-E.; Hau, J. |
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Title |
Effect of metabolic cage housing on immunoglobulin A and corticosterone excretion in faeces and urine of young male rats |
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Journal Article |
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Year |
2004 |
Publication |
Experimental Physiology |
Abbreviated Journal |
Exp. Physiol. |
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89 |
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4 |
Pages |
427-433 |
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Six 8-week-old Sprague-Dawley rats were studied for 9 days divided into three periods of 3 days each: before transferral to metabolism cages, during metabolic cage housing and after return to their home cages. Faeces were collected daily when the animals were housed in their home cages and every 6 h when the animals were housed in metabolic cages during which time urine was also collected every 6 h. The rate of weight gain was slightly reduced during the 3 days in metabolic cages and the animals produced significantly larger amounts of faeces when housed in metabolic cages than when housed in their home cages. The total faecal excretion of corticosterone (nanograms excreted per hour per kilogram body weight) and immunoglobulin A (IgA) (milligrams excreted per hour per kg body weight) quantified by enzyme-linked immunosorbent assays (ELISAs) exhibited a clear diurnal rhythm in the metabolic cage. Urinary excretions of corticosterone and IgA also followed a clear diurnal cycle. The mean daily amounts of corticosterone excreted were not significantly affected by cage change and by housing in metabolic cages. However, the excretion of faecal IgA was significantly reduced during the 3 days after the period in metabolic cages. Taken together the results indicate that metabolic cage housing is mildly stressful for young adult male rats. |
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Blackwell Science Ltd |
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1469-445x |
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Equine Behaviour @ team @ |
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5850 |
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Hau, J.; Andersson, E.; Carlsson, H.-E. |
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Title |
Development and validation of a sensitive ELISA for quantification of secretory IgA in rat saliva and faeces |
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Journal Article |
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Year |
2001 |
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Laboratory Animals |
Abbreviated Journal |
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35 |
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4 |
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301-306 |
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Non-invasive measures of immunological markers are an attractive means of stress assessment in laboratory animals. Salivary IgA has been used successfully as a stress marker in the human, and several reports indicate the potential of secretory IgA as a non-invasive measure of stress in animals. The present paper describes the development of an ELISA using commercially available components for the quantification of rat IgA and validation of this assay for the quantification of rat secretory IgA in saliva and faeces. The concentration of IgA in rat saliva varied significantly between duplicate samples obtained from individual rats, and the viscosity and small total volume of rat saliva gave unsatisfactory results for IgA. Faecal IgA was present in high concentrations, and duplicate samples varied by only 2-3%. However, faecal IgA seemed less stable than IgA in other biological compartments, and this finding must be taken into consideration when using quantitative measurements of IgA as a marker of mucous humoral immune status. |
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10.1258/0023677011911822 |
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Equine Behaviour @ team @ |
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5851 |
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Author |
Paramastri, Y.; Royo, F.; Eberova, J.; Carlsson, H.-E.; Sajuthi, D.; Fernstrom, A.-L.; Pamungkas, J.; Hau, J. |
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Title |
Urinary and fecal immunoglobulin A, cortisol and 11-17 dioxoandrostanes, and serum cortisol in metabolic cage housed female cynomolgus monkeys (Macaca fascicularis) |
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Journal Article |
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Year |
2007 |
Publication |
Journal of Medical Primatology |
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36 |
Issue |
6 |
Pages |
355-364 |
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Keywords |
cortisol; cynomolgus monkey; immunoglobulin A; long tailed macaque; Macaca fascicularis; metabolism cage |
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Background and methods Quantitative enzyme-immunoassays of urinary and fecal immunoglobulin A (IgA), cortisol and 11-17-dioxoandrostanes (11,17-DOA), and serum cortisol in eight metabolic-cage-housed female cynomolgus monkeys were performed. The monkeys were divided into two groups, B and NB. Group B animals were blood sampled every 6 hours, whereas Group NB animals were not handled/blood sampled. Results No differences were recorded between the amounts of feces and urine excreted by the two groups. Group B animals excreted more urinary cortisol than did Group NB animals indicating that restraint-blood sampling resulted in a stress response. Excreted amounts of IgA and 11,17-DOA (urine and feces) did not differ between the groups. Conclusions Urinary cortisol was a reliable marker of the stress associated with repeated blood sampling. Declining amounts of excreted urinary cortisol indicated that cynomolgus monkeys acclimated quickly to repeated blood sampling in metabolism cages. Within and between animal variation in amounts of feces voided demonstrated the importance of expressing fecal markers as ‘amounts excreted per time unit per kg body weight’ rather than just measuring the concentrations in fecal samples. |
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Blackwell Publishing Ltd |
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1600-0684 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5854 |
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